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-/*
- * implement.h
- *
- * Definitions that don't need to be public.
- *
- * Keeps all the internals out of pthread.h
- *
- * --------------------------------------------------------------------------
- *
- * Pthreads-win32 - POSIX Threads Library for Win32
- * Copyright(C) 1998 John E. Bossom
- * Copyright(C) 1999,2005 Pthreads-win32 contributors
- *
- * Contact Email: Ross.Johnson@homemail.com.au
- *
- * The current list of contributors is contained
- * in the file CONTRIBUTORS included with the source
- * code distribution. The list can also be seen at the
- * following World Wide Web location:
- * http://sources.redhat.com/pthreads-win32/contributors.html
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library in the file COPYING.LIB;
- * if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#if !defined(_IMPLEMENT_H)
-#define _IMPLEMENT_H
-
-#if !defined(_WIN32_WINNT)
-#define _WIN32_WINNT 0x0400
-#endif
-
-#include <windows.h>
-
-/*
- * In case windows.h doesn't define it (e.g. WinCE perhaps)
- */
-#if defined(WINCE)
-typedef VOID (APIENTRY *PAPCFUNC)(DWORD dwParam);
-#endif
-
-/*
- * note: ETIMEDOUT is correctly defined in winsock.h
- */
-#include <winsock.h>
-
-/*
- * In case ETIMEDOUT hasn't been defined above somehow.
- */
-#if !defined(ETIMEDOUT)
-# define ETIMEDOUT 10060 /* This is the value in winsock.h. */
-#endif
-
-#if !defined(malloc)
-#include <malloc.h>
-#endif
-
-#if defined(__CLEANUP_C)
-# include <setjmp.h>
-#endif
-
-#if !defined(INT_MAX)
-#include <limits.h>
-#endif
-
-/* use local include files during development */
-#include "semaphore.h"
-#include "sched.h"
-
-#if defined(HAVE_C_INLINE) || defined(__cplusplus)
-#define INLINE inline
-#else
-#define INLINE
-#endif
-
-#if defined(_MSC_VER) && _MSC_VER < 1300
-/*
- * MSVC 6 does not use the "volatile" qualifier
- */
-#define PTW32_INTERLOCKED_VOLATILE
-#else
-#define PTW32_INTERLOCKED_VOLATILE volatile
-#endif
-#define PTW32_INTERLOCKED_LONG long
-#define PTW32_INTERLOCKED_SIZE size_t
-#define PTW32_INTERLOCKED_PVOID PVOID
-#define PTW32_INTERLOCKED_LONGPTR PTW32_INTERLOCKED_VOLATILE long*
-#define PTW32_INTERLOCKED_SIZEPTR PTW32_INTERLOCKED_VOLATILE size_t*
-#define PTW32_INTERLOCKED_PVOID_PTR PTW32_INTERLOCKED_VOLATILE PVOID*
-
-#if defined(__MINGW64__) || defined(__MINGW32__)
-# include <stdint.h>
-#elif defined(__BORLANDC__)
-# define int64_t ULONGLONG
-#else
-# define int64_t _int64
-# if defined(_MSC_VER) && _MSC_VER < 1300
- typedef long intptr_t;
-# endif
-#endif
-
-typedef enum
-{
- /*
- * This enumeration represents the state of the thread;
- * The thread is still "alive" if the numeric value of the
- * state is greater or equal "PThreadStateRunning".
- */
- PThreadStateInitial = 0, /* Thread not running */
- PThreadStateRunning, /* Thread alive & kicking */
- PThreadStateSuspended, /* Thread alive but suspended */
- PThreadStateCancelPending, /* Thread alive but */
- /* has cancelation pending. */
- PThreadStateCanceling, /* Thread alive but is */
- /* in the process of terminating */
- /* due to a cancellation request */
- PThreadStateExiting, /* Thread alive but exiting */
- /* due to an exception */
- PThreadStateLast, /* All handlers have been run and now */
- /* final cleanup can be done. */
- PThreadStateReuse /* In reuse pool. */
-}
-PThreadState;
-
-typedef struct ptw32_mcs_node_t_ ptw32_mcs_local_node_t;
-typedef struct ptw32_mcs_node_t_* ptw32_mcs_lock_t;
-typedef struct ptw32_robust_node_t_ ptw32_robust_node_t;
-typedef struct ptw32_thread_t_ ptw32_thread_t;
-
-
-struct ptw32_thread_t_
-{
- unsigned __int64 seqNumber; /* Process-unique thread sequence number */
- HANDLE threadH; /* Win32 thread handle - POSIX thread is invalid if threadH == 0 */
- pthread_t ptHandle; /* This thread's permanent pthread_t handle */
- ptw32_thread_t * prevReuse; /* Links threads on reuse stack */
- volatile PThreadState state;
- ptw32_mcs_lock_t threadLock; /* Used for serialised access to public thread state */
- ptw32_mcs_lock_t stateLock; /* Used for async-cancel safety */
- HANDLE cancelEvent;
- void *exitStatus;
- void *parms;
- void *keys;
- void *nextAssoc;
-#if defined(__CLEANUP_C)
- jmp_buf start_mark; /* Jump buffer follows void* so should be aligned */
-#endif /* __CLEANUP_C */
-#if defined(HAVE_SIGSET_T)
- sigset_t sigmask;
-#endif /* HAVE_SIGSET_T */
- ptw32_mcs_lock_t
- robustMxListLock; /* robustMxList lock */
- ptw32_robust_node_t*
- robustMxList; /* List of currenty held robust mutexes */
- int ptErrno;
- int detachState;
- int sched_priority; /* As set, not as currently is */
- int cancelState;
- int cancelType;
- int implicit:1;
- DWORD thread; /* Win32 thread ID */
-#if defined(_UWIN)
- DWORD dummy[5];
-#endif
- size_t align; /* Force alignment if this struct is packed */
-};
-
-
-/*
- * Special value to mark attribute objects as valid.
- */
-#define PTW32_ATTR_VALID ((unsigned long) 0xC4C0FFEE)
-
-struct pthread_attr_t_
-{
- unsigned long valid;
- void *stackaddr;
- size_t stacksize;
- int detachstate;
- struct sched_param param;
- int inheritsched;
- int contentionscope;
-#if defined(HAVE_SIGSET_T)
- sigset_t sigmask;
-#endif /* HAVE_SIGSET_T */
-};
-
-
-/*
- * ====================
- * ====================
- * Semaphores, Mutexes and Condition Variables
- * ====================
- * ====================
- */
-
-struct sem_t_
-{
- int value;
- pthread_mutex_t lock;
- HANDLE sem;
-#if defined(NEED_SEM)
- int leftToUnblock;
-#endif
-};
-
-#define PTW32_OBJECT_AUTO_INIT ((void *)(size_t) -1)
-#define PTW32_OBJECT_INVALID NULL
-
-struct pthread_mutex_t_
-{
- LONG lock_idx; /* Provides exclusive access to mutex state
- via the Interlocked* mechanism.
- 0: unlocked/free.
- 1: locked - no other waiters.
- -1: locked - with possible other waiters.
- */
- int recursive_count; /* Number of unlocks a thread needs to perform
- before the lock is released (recursive
- mutexes only). */
- int kind; /* Mutex type. */
- pthread_t ownerThread;
- HANDLE event; /* Mutex release notification to waiting
- threads. */
- ptw32_robust_node_t*
- robustNode; /* Extra state for robust mutexes */
-};
-
-enum ptw32_robust_state_t_
-{
- PTW32_ROBUST_CONSISTENT,
- PTW32_ROBUST_INCONSISTENT,
- PTW32_ROBUST_NOTRECOVERABLE
-};
-
-typedef enum ptw32_robust_state_t_ ptw32_robust_state_t;
-
-/*
- * Node used to manage per-thread lists of currently-held robust mutexes.
- */
-struct ptw32_robust_node_t_
-{
- pthread_mutex_t mx;
- ptw32_robust_state_t stateInconsistent;
- ptw32_robust_node_t* prev;
- ptw32_robust_node_t* next;
-};
-
-struct pthread_mutexattr_t_
-{
- int pshared;
- int kind;
- int robustness;
-};
-
-/*
- * Possible values, other than PTW32_OBJECT_INVALID,
- * for the "interlock" element in a spinlock.
- *
- * In this implementation, when a spinlock is initialised,
- * the number of cpus available to the process is checked.
- * If there is only one cpu then "interlock" is set equal to
- * PTW32_SPIN_USE_MUTEX and u.mutex is an initialised mutex.
- * If the number of cpus is greater than 1 then "interlock"
- * is set equal to PTW32_SPIN_UNLOCKED and the number is
- * stored in u.cpus. This arrangement allows the spinlock
- * routines to attempt an InterlockedCompareExchange on "interlock"
- * immediately and, if that fails, to try the inferior mutex.
- *
- * "u.cpus" isn't used for anything yet, but could be used at
- * some point to optimise spinlock behaviour.
- */
-#define PTW32_SPIN_INVALID (0)
-#define PTW32_SPIN_UNLOCKED (1)
-#define PTW32_SPIN_LOCKED (2)
-#define PTW32_SPIN_USE_MUTEX (3)
-
-struct pthread_spinlock_t_
-{
- long interlock; /* Locking element for multi-cpus. */
- union
- {
- int cpus; /* No. of cpus if multi cpus, or */
- pthread_mutex_t mutex; /* mutex if single cpu. */
- } u;
-};
-
-/*
- * MCS lock queue node - see ptw32_MCS_lock.c
- */
-struct ptw32_mcs_node_t_
-{
- struct ptw32_mcs_node_t_ **lock; /* ptr to tail of queue */
- struct ptw32_mcs_node_t_ *next; /* ptr to successor in queue */
- HANDLE readyFlag; /* set after lock is released by
- predecessor */
- HANDLE nextFlag; /* set after 'next' ptr is set by
- successor */
-};
-
-
-struct pthread_barrier_t_
-{
- unsigned int nCurrentBarrierHeight;
- unsigned int nInitialBarrierHeight;
- int pshared;
- sem_t semBarrierBreeched;
- ptw32_mcs_lock_t lock;
- ptw32_mcs_local_node_t proxynode;
-};
-
-struct pthread_barrierattr_t_
-{
- int pshared;
-};
-
-struct pthread_key_t_
-{
- DWORD key;
- void (*destructor) (void *);
- ptw32_mcs_lock_t keyLock;
- void *threads;
-};
-
-
-typedef struct ThreadParms ThreadParms;
-
-struct ThreadParms
-{
- pthread_t tid;
- void *(*start) (void *);
- void *arg;
-};
-
-
-struct pthread_cond_t_
-{
- long nWaitersBlocked; /* Number of threads blocked */
- long nWaitersGone; /* Number of threads timed out */
- long nWaitersToUnblock; /* Number of threads to unblock */
- sem_t semBlockQueue; /* Queue up threads waiting for the */
- /* condition to become signalled */
- sem_t semBlockLock; /* Semaphore that guards access to */
- /* | waiters blocked count/block queue */
- /* +-> Mandatory Sync.LEVEL-1 */
- pthread_mutex_t mtxUnblockLock; /* Mutex that guards access to */
- /* | waiters (to)unblock(ed) counts */
- /* +-> Optional* Sync.LEVEL-2 */
- pthread_cond_t next; /* Doubly linked list */
- pthread_cond_t prev;
-};
-
-
-struct pthread_condattr_t_
-{
- int pshared;
-};
-
-#define PTW32_RWLOCK_MAGIC 0xfacade2
-
-struct pthread_rwlock_t_
-{
- pthread_mutex_t mtxExclusiveAccess;
- pthread_mutex_t mtxSharedAccessCompleted;
- pthread_cond_t cndSharedAccessCompleted;
- int nSharedAccessCount;
- int nExclusiveAccessCount;
- int nCompletedSharedAccessCount;
- int nMagic;
-};
-
-struct pthread_rwlockattr_t_
-{
- int pshared;
-};
-
-typedef struct ThreadKeyAssoc ThreadKeyAssoc;
-
-struct ThreadKeyAssoc
-{
- /*
- * Purpose:
- * This structure creates an association between a thread and a key.
- * It is used to implement the implicit invocation of a user defined
- * destroy routine for thread specific data registered by a user upon
- * exiting a thread.
- *
- * Graphically, the arrangement is as follows, where:
- *
- * K - Key with destructor
- * (head of chain is key->threads)
- * T - Thread that has called pthread_setspecific(Kn)
- * (head of chain is thread->keys)
- * A - Association. Each association is a node at the
- * intersection of two doubly-linked lists.
- *
- * T1 T2 T3
- * | | |
- * | | |
- * K1 -----+-----A-----A----->
- * | | |
- * | | |
- * K2 -----A-----A-----+----->
- * | | |
- * | | |
- * K3 -----A-----+-----A----->
- * | | |
- * | | |
- * V V V
- *
- * Access to the association is guarded by two locks: the key's
- * general lock (guarding the row) and the thread's general
- * lock (guarding the column). This avoids the need for a
- * dedicated lock for each association, which not only consumes
- * more handles but requires that the lock resources persist
- * until both the key is deleted and the thread has called the
- * destructor. The two-lock arrangement allows those resources
- * to be freed as soon as either thread or key is concluded.
- *
- * To avoid deadlock, whenever both locks are required both the
- * key and thread locks are acquired consistently in the order
- * "key lock then thread lock". An exception to this exists
- * when a thread calls the destructors, however, this is done
- * carefully (but inelegantly) to avoid deadlock.
- *
- * An association is created when a thread first calls
- * pthread_setspecific() on a key that has a specified
- * destructor.
- *
- * An association is destroyed either immediately after the
- * thread calls the key destructor function on thread exit, or
- * when the key is deleted.
- *
- * Attributes:
- * thread
- * reference to the thread that owns the
- * association. This is actually the pointer to the
- * thread struct itself. Since the association is
- * destroyed before the thread exits, this can never
- * point to a different logical thread to the one that
- * created the assoc, i.e. after thread struct reuse.
- *
- * key
- * reference to the key that owns the association.
- *
- * nextKey
- * The pthread_t->keys attribute is the head of a
- * chain of associations that runs through the nextKey
- * link. This chain provides the 1 to many relationship
- * between a pthread_t and all pthread_key_t on which
- * it called pthread_setspecific.
- *
- * prevKey
- * Similarly.
- *
- * nextThread
- * The pthread_key_t->threads attribute is the head of
- * a chain of associations that runs through the
- * nextThreads link. This chain provides the 1 to many
- * relationship between a pthread_key_t and all the
- * PThreads that have called pthread_setspecific for
- * this pthread_key_t.
- *
- * prevThread
- * Similarly.
- *
- * Notes:
- * 1) As soon as either the key or the thread is no longer
- * referencing the association, it can be destroyed. The
- * association will be removed from both chains.
- *
- * 2) Under WIN32, an association is only created by
- * pthread_setspecific if the user provided a
- * destroyRoutine when they created the key.
- *
- *
- */
- ptw32_thread_t * thread;
- pthread_key_t key;
- ThreadKeyAssoc *nextKey;
- ThreadKeyAssoc *nextThread;
- ThreadKeyAssoc *prevKey;
- ThreadKeyAssoc *prevThread;
-};
-
-
-#if defined(__CLEANUP_SEH)
-/*
- * --------------------------------------------------------------
- * MAKE_SOFTWARE_EXCEPTION
- * This macro constructs a software exception code following
- * the same format as the standard Win32 error codes as defined
- * in WINERROR.H
- * Values are 32 bit values laid out as follows:
- *
- * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- * +---+-+-+-----------------------+-------------------------------+
- * |Sev|C|R| Facility | Code |
- * +---+-+-+-----------------------+-------------------------------+
- *
- * Severity Values:
- */
-#define SE_SUCCESS 0x00
-#define SE_INFORMATION 0x01
-#define SE_WARNING 0x02
-#define SE_ERROR 0x03
-
-#define MAKE_SOFTWARE_EXCEPTION( _severity, _facility, _exception ) \
-( (DWORD) ( ( (_severity) << 30 ) | /* Severity code */ \
- ( 1 << 29 ) | /* MS=0, User=1 */ \
- ( 0 << 28 ) | /* Reserved */ \
- ( (_facility) << 16 ) | /* Facility Code */ \
- ( (_exception) << 0 ) /* Exception Code */ \
- ) )
-
-/*
- * We choose one specific Facility/Error code combination to
- * identify our software exceptions vs. WIN32 exceptions.
- * We store our actual component and error code within
- * the optional information array.
- */
-#define EXCEPTION_PTW32_SERVICES \
- MAKE_SOFTWARE_EXCEPTION( SE_ERROR, \
- PTW32_SERVICES_FACILITY, \
- PTW32_SERVICES_ERROR )
-
-#define PTW32_SERVICES_FACILITY 0xBAD
-#define PTW32_SERVICES_ERROR 0xDEED
-
-#endif /* __CLEANUP_SEH */
-
-/*
- * Services available through EXCEPTION_PTW32_SERVICES
- * and also used [as parameters to ptw32_throw()] as
- * generic exception selectors.
- */
-
-#define PTW32_EPS_EXIT (1)
-#define PTW32_EPS_CANCEL (2)
-
-
-/* Useful macros */
-#define PTW32_MAX(a,b) ((a)<(b)?(b):(a))
-#define PTW32_MIN(a,b) ((a)>(b)?(b):(a))
-
-
-/* Declared in pthread_cancel.c */
-extern DWORD (*ptw32_register_cancelation) (PAPCFUNC, HANDLE, DWORD);
-
-/* Thread Reuse stack bottom marker. Must not be NULL or any valid pointer to memory. */
-#define PTW32_THREAD_REUSE_EMPTY ((ptw32_thread_t *)(size_t) 1)
-
-extern int ptw32_processInitialized;
-extern ptw32_thread_t * ptw32_threadReuseTop;
-extern ptw32_thread_t * ptw32_threadReuseBottom;
-extern pthread_key_t ptw32_selfThreadKey;
-extern pthread_key_t ptw32_cleanupKey;
-extern pthread_cond_t ptw32_cond_list_head;
-extern pthread_cond_t ptw32_cond_list_tail;
-
-extern int ptw32_mutex_default_kind;
-
-extern unsigned __int64 ptw32_threadSeqNumber;
-
-extern int ptw32_concurrency;
-
-extern int ptw32_features;
-
-extern ptw32_mcs_lock_t ptw32_thread_reuse_lock;
-extern ptw32_mcs_lock_t ptw32_mutex_test_init_lock;
-extern ptw32_mcs_lock_t ptw32_cond_list_lock;
-extern ptw32_mcs_lock_t ptw32_cond_test_init_lock;
-extern ptw32_mcs_lock_t ptw32_rwlock_test_init_lock;
-extern ptw32_mcs_lock_t ptw32_spinlock_test_init_lock;
-
-#if defined(_UWIN)
-extern int pthread_count;
-#endif
-
-#if defined(__cplusplus)
-extern "C"
-{
-#endif /* __cplusplus */
-
-/*
- * =====================
- * =====================
- * Forward Declarations
- * =====================
- * =====================
- */
-
- int ptw32_is_attr (const pthread_attr_t * attr);
-
- int ptw32_cond_check_need_init (pthread_cond_t * cond);
- int ptw32_mutex_check_need_init (pthread_mutex_t * mutex);
- int ptw32_rwlock_check_need_init (pthread_rwlock_t * rwlock);
-
- int ptw32_robust_mutex_inherit(pthread_mutex_t * mutex);
- void ptw32_robust_mutex_add(pthread_mutex_t* mutex, pthread_t self);
- void ptw32_robust_mutex_remove(pthread_mutex_t* mutex, ptw32_thread_t* otp);
-
- DWORD
- ptw32_RegisterCancelation (PAPCFUNC callback,
- HANDLE threadH, DWORD callback_arg);
-
- int ptw32_processInitialize (void);
-
- void ptw32_processTerminate (void);
-
- void ptw32_threadDestroy (pthread_t tid);
-
- void ptw32_pop_cleanup_all (int execute);
-
- pthread_t ptw32_new (void);
-
- pthread_t ptw32_threadReusePop (void);
-
- void ptw32_threadReusePush (pthread_t thread);
-
- int ptw32_getprocessors (int *count);
-
- int ptw32_setthreadpriority (pthread_t thread, int policy, int priority);
-
- void ptw32_rwlock_cancelwrwait (void *arg);
-
-#if ! (defined (__MINGW64__) || defined(__MINGW32__)) || (defined(__MSVCRT__) && ! defined(__DMC__))
- unsigned __stdcall
-#else
- void
-#endif
- ptw32_threadStart (void *vthreadParms);
-
- void ptw32_callUserDestroyRoutines (pthread_t thread);
-
- int ptw32_tkAssocCreate (ptw32_thread_t * thread, pthread_key_t key);
-
- void ptw32_tkAssocDestroy (ThreadKeyAssoc * assoc);
-
- int ptw32_semwait (sem_t * sem);
-
- DWORD ptw32_relmillisecs (const struct timespec * abstime);
-
- void ptw32_mcs_lock_acquire (ptw32_mcs_lock_t * lock, ptw32_mcs_local_node_t * node);
-
- int ptw32_mcs_lock_try_acquire (ptw32_mcs_lock_t * lock, ptw32_mcs_local_node_t * node);
-
- void ptw32_mcs_lock_release (ptw32_mcs_local_node_t * node);
-
- void ptw32_mcs_node_transfer (ptw32_mcs_local_node_t * new_node, ptw32_mcs_local_node_t * old_node);
-
-#if defined(NEED_FTIME)
- void ptw32_timespec_to_filetime (const struct timespec *ts, FILETIME * ft);
- void ptw32_filetime_to_timespec (const FILETIME * ft, struct timespec *ts);
-#endif
-
-/* Declared in misc.c */
-#if defined(NEED_CALLOC)
-#define calloc(n, s) ptw32_calloc(n, s)
- void *ptw32_calloc (size_t n, size_t s);
-#endif
-
-/* Declared in private.c */
-#if defined(_MSC_VER)
-/*
- * Ignore the warning:
- * "C++ exception specification ignored except to indicate that
- * the function is not __declspec(nothrow)."
- */
-#pragma warning(disable:4290)
-#endif
- void ptw32_throw (DWORD exception)
-#if defined(__CLEANUP_CXX)
- throw(ptw32_exception_cancel,ptw32_exception_exit)
-#endif
-;
-
-#if defined(__cplusplus)
-}
-#endif /* __cplusplus */
-
-
-#if defined(_UWIN_)
-# if defined(_MT)
-# if defined(__cplusplus)
-extern "C"
-{
-# endif
- _CRTIMP unsigned long __cdecl _beginthread (void (__cdecl *) (void *),
- unsigned, void *);
- _CRTIMP void __cdecl _endthread (void);
- _CRTIMP unsigned long __cdecl _beginthreadex (void *, unsigned,
- unsigned (__stdcall *) (void *),
- void *, unsigned, unsigned *);
- _CRTIMP void __cdecl _endthreadex (unsigned);
-# if defined(__cplusplus)
-}
-# endif
-# endif
-#else
-# include <process.h>
-# endif
-
-
-/*
- * Use intrinsic versions wherever possible. VC will do this
- * automatically where possible and GCC define these if available:
- * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1
- * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
- * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
- * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
- * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
- *
- * The full set of Interlocked intrinsics in GCC are (check versions):
- * type __sync_fetch_and_add (type *ptr, type value, ...)
- * type __sync_fetch_and_sub (type *ptr, type value, ...)
- * type __sync_fetch_and_or (type *ptr, type value, ...)
- * type __sync_fetch_and_and (type *ptr, type value, ...)
- * type __sync_fetch_and_xor (type *ptr, type value, ...)
- * type __sync_fetch_and_nand (type *ptr, type value, ...)
- * type __sync_add_and_fetch (type *ptr, type value, ...)
- * type __sync_sub_and_fetch (type *ptr, type value, ...)
- * type __sync_or_and_fetch (type *ptr, type value, ...)
- * type __sync_and_and_fetch (type *ptr, type value, ...)
- * type __sync_xor_and_fetch (type *ptr, type value, ...)
- * type __sync_nand_and_fetch (type *ptr, type value, ...)
- * bool __sync_bool_compare_and_swap (type *ptr, type oldval type newval, ...)
- * type __sync_val_compare_and_swap (type *ptr, type oldval type newval, ...)
- * __sync_synchronize (...) // Full memory barrier
- * type __sync_lock_test_and_set (type *ptr, type value, ...) // Acquire barrier
- * void __sync_lock_release (type *ptr, ...) // Release barrier
- *
- * These are all overloaded and take 1,2,4,8 byte scalar or pointer types.
- *
- * The above aren't available in Mingw32 as of gcc 4.5.2 so define our own.
- */
-#if defined(__GNUC__)
-# if defined(_WIN64)
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_64(location, value, comparand) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "cmpxchgq %2,(%1)" \
- :"=a" (_result) \
- :"r" (location), "r" (value), "a" (comparand) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_EXCHANGE_64(location, value) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "xchgq %0,(%1)" \
- :"=r" (_result) \
- :"r" (location), "0" (value) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_64(location, value) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddq %0,(%1)" \
- :"=r" (_result) \
- :"r" (location), "0" (value) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_INCREMENT_64(location) \
- ({ \
- PTW32_INTERLOCKED_LONG _temp = 1; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddq %0,(%1)" \
- :"+r" (_temp) \
- :"r" (location) \
- :"memory", "cc"); \
- ++_temp; \
- })
-# define PTW32_INTERLOCKED_DECREMENT_64(location) \
- ({ \
- PTW32_INTERLOCKED_LONG _temp = -1; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddq %2,(%1)" \
- :"+r" (_temp) \
- :"r" (location) \
- :"memory", "cc"); \
- --_temp; \
- })
-#endif
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG(location, value, comparand) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "cmpxchgl %2,(%1)" \
- :"=a" (_result) \
- :"r" (location), "r" (value), "a" (comparand) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_EXCHANGE_LONG(location, value) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "xchgl %0,(%1)" \
- :"=r" (_result) \
- :"r" (location), "0" (value) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_LONG(location, value) \
- ({ \
- __typeof (value) _result; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddl %0,(%1)" \
- :"=r" (_result) \
- :"r" (location), "0" (value) \
- :"memory", "cc"); \
- _result; \
- })
-# define PTW32_INTERLOCKED_INCREMENT_LONG(location) \
- ({ \
- PTW32_INTERLOCKED_LONG _temp = 1; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddl %0,(%1)" \
- :"+r" (_temp) \
- :"r" (location) \
- :"memory", "cc"); \
- ++_temp; \
- })
-# define PTW32_INTERLOCKED_DECREMENT_LONG(location) \
- ({ \
- PTW32_INTERLOCKED_LONG _temp = -1; \
- __asm__ __volatile__ \
- ( \
- "lock\n\t" \
- "xaddl %0,(%1)" \
- :"+r" (_temp) \
- :"r" (location) \
- :"memory", "cc"); \
- --_temp; \
- })
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR(location, value, comparand) \
- PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE((PTW32_INTERLOCKED_SIZEPTR)location, \
- (PTW32_INTERLOCKED_SIZE)value, \
- (PTW32_INTERLOCKED_SIZE)comparand)
-# define PTW32_INTERLOCKED_EXCHANGE_PTR(location, value) \
- PTW32_INTERLOCKED_EXCHANGE_SIZE((PTW32_INTERLOCKED_SIZEPTR)location, \
- (PTW32_INTERLOCKED_SIZE)value)
-#else
-# if defined(_WIN64)
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_64 InterlockedCompareExchange64
-# define PTW32_INTERLOCKED_EXCHANGE_64 InterlockedExchange64
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_64 InterlockedExchangeAdd64
-# define PTW32_INTERLOCKED_INCREMENT_64 InterlockedIncrement64
-# define PTW32_INTERLOCKED_DECREMENT_64 InterlockedDecrement64
-# endif
-# if defined(_MSC_VER) && _MSC_VER < 1300 && !defined(_WIN64) /* MSVC 6 */
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG(location, value, comparand) \
- ((LONG)InterlockedCompareExchange((PVOID *)(location), (PVOID)(value), (PVOID)(comparand)))
-# else
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG InterlockedCompareExchange
-# endif
-# define PTW32_INTERLOCKED_EXCHANGE_LONG InterlockedExchange
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_LONG InterlockedExchangeAdd
-# define PTW32_INTERLOCKED_INCREMENT_LONG InterlockedIncrement
-# define PTW32_INTERLOCKED_DECREMENT_LONG InterlockedDecrement
-# if defined(_MSC_VER) && _MSC_VER < 1300 && !defined(_WIN64) /* MSVC 6 */
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR InterlockedCompareExchange
-# define PTW32_INTERLOCKED_EXCHANGE_PTR(location, value) \
- ((PVOID)InterlockedExchange((LPLONG)(location), (LONG)(value)))
-# else
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_PTR InterlockedCompareExchangePointer
-# define PTW32_INTERLOCKED_EXCHANGE_PTR InterlockedExchangePointer
-# endif
-#endif
-#if defined(_WIN64)
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE PTW32_INTERLOCKED_COMPARE_EXCHANGE_64
-# define PTW32_INTERLOCKED_EXCHANGE_SIZE PTW32_INTERLOCKED_EXCHANGE_64
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_SIZE PTW32_INTERLOCKED_EXCHANGE_ADD_64
-# define PTW32_INTERLOCKED_INCREMENT_SIZE PTW32_INTERLOCKED_INCREMENT_64
-# define PTW32_INTERLOCKED_DECREMENT_SIZE PTW32_INTERLOCKED_DECREMENT_64
-#else
-# define PTW32_INTERLOCKED_COMPARE_EXCHANGE_SIZE PTW32_INTERLOCKED_COMPARE_EXCHANGE_LONG
-# define PTW32_INTERLOCKED_EXCHANGE_SIZE PTW32_INTERLOCKED_EXCHANGE_LONG
-# define PTW32_INTERLOCKED_EXCHANGE_ADD_SIZE PTW32_INTERLOCKED_EXCHANGE_ADD_LONG
-# define PTW32_INTERLOCKED_INCREMENT_SIZE PTW32_INTERLOCKED_INCREMENT_LONG
-# define PTW32_INTERLOCKED_DECREMENT_SIZE PTW32_INTERLOCKED_DECREMENT_LONG
-#endif
-
-#if defined(NEED_CREATETHREAD)
-
-/*
- * Macro uses args so we can cast start_proc to LPTHREAD_START_ROUTINE
- * in order to avoid warnings because of return type
- */
-
-#define _beginthreadex(security, \
- stack_size, \
- start_proc, \
- arg, \
- flags, \
- pid) \
- CreateThread(security, \
- stack_size, \
- (LPTHREAD_START_ROUTINE) start_proc, \
- arg, \
- flags, \
- pid)
-
-#define _endthreadex ExitThread
-
-#endif /* NEED_CREATETHREAD */
-
-
-#endif /* _IMPLEMENT_H */